Cosmological constraints on alternative model to Chaplygin fluid revisited

Understand

In this work we explore an alternative phenomenological model to Chaplygin gas proposed by H.

• Hova et.
• al., consisting on a modification of a perfect fluid, to explain the dynamics of dark matter and dark energy at cosmological scales immerse in a flat or curved universe.
• Adopting properties similar to a Chaplygin gas, the proposed model is a mixture of dark matter and dark energy components parameterized by only one free parameter denoted as $\mu$.